OSI layer is used in computers for connecting one device with others or inn between two computers.
OSI has a very important role in designing a software or connecting devices works on an applications. This is the Hierarchy of all the protocols.
OSI Model is defined by the ISO (International standard Organisation).The OSI Model is introduced in the year of 1970.
It is also called as Basic Reference Model. The idea behind OSI MODEL is brought by CHARLES BACHMAN.
SEVEN LAYERS of OSI MODEL
7. Application Layer
6. Presentation Layer
5. Session Layer
4. Transport Layer
3. Network Layer
2. Datalink Layer
1. Physical Layer